13
b. If using 4-hole adapter with unthreaded fitting (e.g. 4R431=2), bolt directly to socket with four
(4) enclosed M6x25mm cap screws. Torque screws to appropriate setting for component.
4.3 Footshell Application / Removal
NOTICE
The foot is designed to be used with footshell. Please Avoid frequent removal from, and insertion
into, the footshell, as this can damage the carbon fiber elements.
NOTICE
Do no use screwdriver to insert the carbon foot into the footshell or to remove the footshell from
the carbon foot as it can damage the carbon fiber elements and/or foot component.
NOTICE
The footshell must not be dusted by talcum powder as it would increase the abrasion. Use sili-
cone spray if need be. Replace the footshell if it becomes damaged or worn.
4.3.1 To apply the footshell
• Apply supplied Spectra Sock to foot.
• Use the enclosed footshell insertion/removal tool to insert the carbon foot into the footshell. Make
sure that the carbon heel of the foot locks in place under the footshell heel tabs.
4.3.2 To remove the footshell
• Insert the insertion/removal tool under the carbon fiber heel in the posterior part of the footshell
and pry free from the heel tabs. The foot can now be removed from the footshell.
4.4 Cutting the Pylon
Assemble entire prosthesis with all components and calculate amount of pylon to be removed.
Remove all components. Square cut pylon with hacksaw to desired length.
4.5 Alignment
4.5.1 Bench alignment
Recommendations on bench alignment (carbon foot with footshell):
Footsize (cm)
Placement of mid-foot anterior to alignment line
Heel height
22 – 25
35 – 40 mm
13 mm ± 5 mm
26 – 28
40 mm
29 – 31
40 – 45 mm
Normally, walking barefoot during the trial is also tolerated by the construction.
4.5.2 Static alignment optimization
Align the prosthesis on the L.A.S.A.R. Posture, if available. Please use the Ottobock alignment
recommendations for the alignment of transtibial and transfemoral amputees.
4.5.3 Dynamic alignment optimization
Align the prosthesis in the coronal (ML) and sagittal (AP) plane by making angular and/or slide
changes to ensure the correct heel contact, a smooth rollover and optimal forefoot transfer of
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